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Patents for John E. Hall
Patents 1 - 10 of 24
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PictureNumberDatePatenteeTitle
  68,588Sep. 03, 1867S. DarlingInkstand
73,082Jan. 07, 1868S. DarlingStraight Edge
  73,956Feb. 04, 1868S. DarlingImproved Pen Cleaner
  73,957Feb. 04, 1868S. DarlingImproved Gas Heater
RE2,869Feb. 18, 1868S. DarlingImprovement in the Manufacture of Metallic Squares
76,409Apr. 07, 1868S. DarlingImprovement in inkstands
  76,719Apr. 14, 1868J.E. Hall, S. DarlingImprovment in Inkstands
  156,840Nov. 17, 1874S. DarlingInkstands
  RE6,443May 25, 1875S. DarlingImprovment in Inkstands
  164,721Jun. 22, 1875S. Darlinginkstand
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